摘要
采用数值分析方法对某机载雷达中发射座架进行随机振动响应研究,得到了发射座架的模态和应力分布云图。其上定位销的最大应力已经处于危险状态,根据应力分布结果,提出了台阶式定位销改进方案,并对新方案的发射座架进行了数值分析。研究结果表明,采用新式定位销的发射座架可以满足某雷达的隔振要求。
The random vibration response of the transmitter pedestal used in an airborne radar is studied based on numerical analysis method.The modal and stress distribution of the transmitter pedestal are obtained.The result shows that the positioning pins on the transmitter pedestal are in risky state.A new improvement design of step-type positioning pin is proposed according to the stress distribution.Numerical analysis shows that the new positioning pins can satisfy the vibration isolation requirement of the radar.
出处
《电子机械工程》
2015年第4期1-4,共4页
Electro-Mechanical Engineering
关键词
雷达
随机振动
数值分析
radar
random vibration
numerical analysis
